Texas Instruments CC2564MODNEM, User Manual, Page: 11 / 23

8.2.2 The COM Connector
The COM connector interfaces with TI's MPU platforms such as AM335x evaluation module (TMDXEVM3358).
I/Os of the COM connector are at 1.8 V. Some components must not be installed (DNI) to use the COM
connector. See
Section 8.3 for further details. Table 8-3 shows the pinout for the COM connector.
Table 8-3. COM Connector Pinout
(1)
Pin Number Relevant COM Connector Pin Assignment
1 SLOW_CLK_EDGE
8 1V8_IN
52 AUD_CLK_1V8
54 AUD_FSYNC_1V8
56 AUD_IN_1V8
58 AUD_OUT_1V8
66 HCI_TX_1V8
68 HCI_RX_1V8
70 HCI_CTS_1V8
72 HCI_RTS_1V8
76 TX_DEBUG_1V8
89 nSHUTDOWN_1V8
3, 9, 19, 37, 47, 63, 77, 83, 87, 95, 97 GND
2, 6, 18, 22, 42, 60, 64, 92 GND
(1) All other pins are N/C.
8.2.3 Debug Header
The debug header enables important signals in the design such as power, ground, debug, UART, and audio
signals for testing and debugging. The I/Os are at 1.8 V.
Table 8-4 lists the physical location of the pin numbers.
Table 8-4. Debug Header Pinout
Pin Number EM Adapter Pin Assignment Pin Number EM Adapter Pin Assignment
1 GND 2 VBAT
3 VIO_HOST 4 GND
5 AUD_FSYNC_1V8 6 AUD_CLK_1V8
7 AUD_OUT_1V8 8 AUD_IN_1V8
9 CLK_REQ_OUT_1V8 10 SLOW_CLK_EDGE
11 HCI_TX_1V8 12 HCI_RX_1V8
13 HCI_CTS_1V8 14 HCI_RTS_1V8
15 TX_DEBUG_1V8 16 nSHUTDOWN_1V8
17 VDD_1V8 18 GND
www.ti.com Hardware Description
SWRU390A – AUGUST 2014 – REVISED AUGUST 2021
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